AudioDG Virus. Fixing audio problems. (Or any other windows problem)

Now it's been some time since my last post but I just had to post this. I was struggling with this new virus that makes use of the AudioDG service from Microsoft to randomly play advertisements.
After searching on the internet, and not finding any good solution, I decided to do a few basic things that might work. And guess what? It worked! It just..... took a really long time.



1. A small explanation of how AudioDG works and how it's exploited.
2. What anti-virus I use.
3. The first method, the Filesystem check.
4. The second method, a full windows update.

A small explanation
AudioDG is a service from Microsoft, It's supposed to keep software safe from outside changes to the content and plugins. In simpler words: It should help software from attacks and (maby) virusses. But there is bad leak. AudioDG allows software to change AudioDG to run third-party software. So AudioDG will be programmed to run other code, which is good for virusses because AudioDG will look like the cause.

My anti-virus
Even though you might think you're safe from virusses, because you never download malicious files or websites, it can still happen. And if you don't have an Anti-Virus at that time, the virus can cause more damage and even stop you from being able to download Anti-Virus software, So make sure to always have an Anti-Virus. 
I'm using two Anti-Virus softwares. The first one is AVG Anti Virus and Malwarebytes anti-Malware They both do a good job at real time protecten, this means they scan files that are being executed, are going to be executed or even websites. They're also both free, although AVG doesn't offer some abilities if you haven't got a full license.

First method, the FileSystem Check
This method usually works, although not in this/my case. It did give an error to what was missing so that could help you if you encounter any problems. It usually also fixes any missing files. FileSystem check runs through all your windows files and locates missing files, wrong settings, and wrong hash checks. A hash checks ensures you have the file as it should be, so it's not a different file with the same name. Once the check has completed it's recommended to reboot.
To run a Filesystem check do the following:

First open up commandprompt. Do this by opening the start menu and write cmd.
Now write: sfc /scannow you should now see some information in the black window saying it is checking your filesystem. Once done reboot and check if your problem is solved. If not try the next method.

The second method, Full update
As the first method didn't work, I decided to simply update windows. Maybe they already fixed the AudioDG Vulnerablity? I don't know if they fixed it, but updating windows did fix my sound!
To update windows open the start menu and click all programs then click on Windows Update This should open up a window telling you there are new important updates. I reccomend you to update. After updating and rebooting your PC a few times, which happens troughout the updating. You should check to see if your problem is fixed. If it's not fixed go and google some more or try to post on a computer help forum. They usually answer quick and give good advice!


Thanks for reading this long and probably a bit boring post, but hopefully I helped some of you.
Have a nice day,

-Tim.